| ID | Interpret | Skladba | Album | |
| 61. | Barry Coates, Bill Urmson, Billy Ward | String Theory | Out the Door |  |
| 62. | Chaos Theory | Chaos Theory - Everything | Return to the Smokey Basement | |
| 63. | Barry Coates, Bill Urmson, Billy Ward | String Theory 1.01 | Out the Door | |
| 64. | Ed Frawley | theory of motivation | Ed Frawley's Album | |
| 65. | Buffy the Vampire Slayer (Sou | I've Got A Theory, Bunnies, If We're Together | Once More, With Feeling - Ori | |
| 66. | Scanlon, Elizabeth | After a General Theory | | |
| 67. | Noso-Roh Prophecy | Spiral Theory | | |
| 68. | Djinji Brown | Afro-Tek Theory | Afro Bionics | |
| 69. | DJ Dice | Low End Funk Theory Mix | Low End Funk Theory | |
| 70. | Brother Gregory | String's Theory | ICS - Wiglodge 7-30-06 | |
| 71. | Ed Frawley | theory of motivation | Ed Frawley's Album | |
| 72. | Lame Duck | Chaos Theory | Chaos Theory | |
| 73. | DonJuan Fontaine | Theory In Development | Microphone Matrimony | |
| 74. | Thom Donovan | Hole Theory | Reading at Unnameable Books, hosted by Brenda Iijima, January 24, 2009 | |
| 75. | Dr Kuch | The Big Bang Theory | Analog Disease | |
| 76. | Dr Kuch | The Big Bang Theory | Analog Disease | |
| 77. | DrMindbender | Chaos Theory | 02 01 06 | |
| 78. | Thomas Freese | The Herd Theory | Question Based Selling | |
| 79. | DrMindbender | Chaos Theory | 02 01 06 | |
| 80. | Cast Aside | Racecar Theory | Emo Diaries Chapter 5 - I Guess This is Goodbye | |
| 81. | Dog Eat Dogma | Big Bang Theory | Dogmachine | |
| 82. | frosty | chaos theory | loopzilla053 | |
| 83. | E. Hardy | Labour Theory of Value - E. Ha | Album | |
| 84. | World Leader Pretend | Bang Theory | Punches | |
| 85. | CSE Band | Theory Girl | Studio | |
| 86. | CSE Band | Theory Girl | Studio |  |
| 87. | Ben Walker | Remedial Theory | Hearing Voices | |
| 88. | World Leader Pretend | Bang Theory | Punches | |
| 89. | Dr Kuch | The Big Bang Theory | Analog Disease | |
| 90. | Fat Dudes in Space | Phimosis Theory | Fat Dudes in Space | |
